Dual HDD RAID Controller RAID: Redundant Array of Inexpensive Disks Dual HDD: Using RAID 1(Mirroring) technology, Mirrors data to the other disk drive simultaneously, to avoid manufacturing system crash due to disk drive failure. This Dual HDD was designed for manufacturing machines and features an auto data backup solution, especially useful in the Semiconductor and LCD Fabs. Adjustable disk drive capacity: Disk drive capacity can be changed by firmware to solve the potential compatibility issues in different systems. Customize software design: For different production systems, this customized designed is available. Dual HDD Product Features Auto backup data from one HDD to each other, reducing machine shut down due to HDD failure.Hot swappable disks function, will not impact production. Real time monitor disk status & auto alert the disk failure by LED/LCD. Unique battery backup module: When facility power supply is unstable, the battery can keep stable voltage output to Dual HDD system. The item "AMAT SCSI SATA RAID Hard Drive Conversion P5000, 5200 Centura, 5500 Endura" is in sale since Monday, December 19, 2011. This item is in the category "Business & Industrial\Electrical & Test Equipment\Electronic Components\Semiconductors & Actives\Other Semiconductors & Actives". The seller is "be4049" and is located in Mesa, Arizona. This item can be shipped worldwide.